2146687 has 2 divisors, whose sum is σ = 2146688. Its totient is φ = 2146686.

The previous prime is 2146673. The next prime is 2146691. The reversal of 2146687 is 7866412.

2146687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073343 + 1073344.

It is an arithmetic number, because the mean of its divisors is an integer number (1073344).

2^2146687 is an apocalyptic number.

2146687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146687 is an equidigital number, since it uses as much as digits as its factorization.

2146687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 2146687 is about 1465.1576706962. The cubic root of 2146687 is about 128.9999599383. Note that the first 4 decimals are identical.

It can be divided in two parts, 2 and 146687, that added together give a square (146689 = 383²).

The spelling of 2146687 in words is "two million, one hundred forty-six thousand, six hundred eighty-seven".